4250*.07*1.5=446.25
4250-446.25=3803.75
3803.75/4250= .89
That is all that i could get out of what you provided
The midline of the sine function is 0. The +3 added to the sine function moves the midline of f(x) to f(x) = 3.
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You may be expected to write the equation as y = 3.
This is an equation involving x alone, so the most you can do is solve it:

Answer: 
Step-by-step explanation:

Multiply by the reciprocal in order to get rid of the fraction in the denominator.



Answer:
y=1
Step-by-step explanation:
you can use those points to find the slope
use the equation
then plug in the numbers
so (1-1)/(-8-7) = 0/15 so the slope is zero meaning it is a horizontal line which we can tell logically because the y coordinates of both points are 1.
so if you plug those numbers into the formula y=mx+b where m is slope and b is the y intercept then
you get y=0*x+1
then 0*x is just zero and it goes away so the equation for this line is y=1
Hope this helps! :)